For the convenience of subscribers residing abroad, we have prepared
the annexed table, exhibiting the subscription price of the
SCIENTIFIC AMERICAN and SUPPLEMENT in the principal foreign currencies:
The prices here given | SCIENTIFIC | SCIENTIFIC | SCIENTIFIC
are for one year's | AMERICAN | AMERICAN | AMERICAN and
subscription, including | | SUPPLEMENT | SUPPLEMENT
the postage. | | | together.
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Austria | S. Florins 9 | 13 | 20
Belgium | Francs 20 | 30 | 46
Denmark | Kroner 15 | 23 | 35
France | Francs 20 | 30 | 46
German Empire | R. M. 16 | 25 | 37
Great Britain | Shillings 16 | 24 | 36
Holland | H. F. 9 | 14 | 21
Italy | Francs 20 | 30 | 46
Norway | Kroner 15 | 23 | 35
Russia | Roubles 5 | 8 | 11
Sweden | Kroner 15 | 23 | 35
Switzerland | Francs 20 | 30 | 46
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TUBE CLEANERS for cleaning Boiler Tubes.
THE NATIONAL STEEL TUBE CLEANER CO. 814 E. 9th St., N. Y.
ALCOTT LATHES, for Broom, Rake and Hoe Handles.
S. C. HILLS, 78 Chambers St. N. Y.
DROP FORGINGS AND SPECIAL MACHINERY,
THE HULL & BELDEN CO.,
Danbury, Conn.
BEST DAMPER REGULATORS AND LEVERS GAUGE COCKS.
MURRILL & KEIZER, 44 HOLLIDAY ST., BALTIMORE
TORPEDO VESSELS. BY MR. DONALDSON.
A valuable paper, lately read before the United Service Institute.
Being a full exposition of the Torpedo-boat system, from the earliest
efforts to the present time. Giving dimensions and performances of the
several sizes built by Thornycroft Bros. for the various governments,
highly interesting trials of these boats, and experiences in war, and
a description of the torpedoes used. 1 illustration. Contained in
SCIENTIFIC AMERICAN SUPPLEMENT No. 79. Price 10 cents. To be had at
this office and of all newsdealers.
BOGARDUS' PATENT UNIVERSAL ECCENTRIC MILLS--For grinding Bones, Ores,
Sand, Old Crucibles, Fire Clay, Guanos, Oil Cake, Feed, Corn, Corn and
Cob, Tobacco, Snuff, Sugar, Salts, Roots, Spices, Coffee, Cocoanut,
Flaxseed, Asbestos, Mica, etc., and whatever cannot be ground by other
mills. Also for Paints, Printers' Inks, Paste Blacking, etc.
JOHN W. THOMSON, successor to JAMES BOGARDUS,
corner of White and Elm Sts., New York.